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Milwaukee

Milwaukee M18 4-Gallon Backpack Sprayer w/ Switch Tank

$212.00-to$545.49

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SKU:
M4GBS

The M18™ 4-Gallon Backpack Sprayer with SWITCH TANK™ delivers consistent, adjustable pressure up to 140 PSI with no manual pumping. Designed for pros, its interchangeable tank system prevents cross-contamination and adapts easily across applications. Powered by an M18™ REDLITHIUM™ Battery (sold separately), it sprays up to 20 tanks per charge. Built for comfort and durability, this sprayer features a dual diaphragm pump, chemical-resistant Viton® seals, and a padded ergonomic frame.

Active slide of Milwaukee M18 4-Gallon Backpack Sprayer w/ Switch Tank

Description

The M18™ 4-Gallon Backpack Sprayer with SWITCH TANK™ delivers consistent, adjustable pressure up to 140 PSI with no manual pumping. Designed for pros, its interchangeable tank system prevents cross-contamination and adapts easily across applications. Powered by an M18™ REDLITHIUM™ Battery (sold separately), it sprays up to 20 tanks per charge. Built for comfort and durability, this sprayer features a dual diaphragm pump, chemical-resistant Viton® seals, and a padded ergonomic frame.

Details


Milwaukee M18™ 4-Gallon Backpack Sprayer w/ Switch Tank (Tool Only | MPN: 3019-20ps)

  • No manual pumping – instant, consistent pressure up to 140 PSI
  • 24 ft vertical spray reach for extended coverage
  • 5-mode flow rate control (0.1–0.52 GPM) for precise application
  • Sprays up to 20 tanks per charge (Mode 3) with M18™ REDLITHIUM™ XC3.0 Battery (sold separately)
  • Interchangeable tank design prevents cross-chemical contamination
  • Dual diaphragm pump and Viton® seals for chemical resistance and longer life
  • Ergonomic backpack design with padded straps, lumbar support, and hip belt
  • Wide mouth opening with integrated strainer for easy filling
  • Modular two-part system: M18™ Powered Base and Sprayer Tank Assembly
  • Compatible with M18™ Water Supply Tank Assembly
  • Includes: 4-Gallon Sprayer Tank Assembly w/ Switch-Tank, Backpack Sprayer Hose Handle and Wand Assembly
  • Weight: 17.4 lbs
  • Fully compatible with 275+ M18™ tools

Milwaukee 4-Gallon Sprayer Tank Assembly w/ Switch Tank (Tank | 49-16-19ps)

  • Compatible with M18™ Powered Base w/ SWITCH TANK™ (sold separately)
  • Interchangeable tank design prevents cross-chemical contamination
  • Includes pump, hose, and wand for complete spraying functionality
  • Dual diaphragm pump for long-lasting performance
  • Viton® seals for increased durability with harsh chemicals
  • Wide mouth opening for easy filling
  • Integrated strainer helps prevent clogs by filtering debris
  • Weight: 8 lbs
  • Includes: 4-Gallon Sprayer Tank Assembly w/ SWITCH TANK™, Backpack Sprayer Hose Handle and Wand Assembly, Sprayer Nozzles

Milwaukee M18™ 4-Gallon Backpack Sprayer w/ Switch Tank Kit (MPN: 3019-21ps)

  • Kit Includes:  4-Gallon Backpack Sprayer w/ Switch Tank, M18™ REDLITHIUM™ XC Extended Capacity Battery, M18 & M12™ Multi-Voltage Charger, and Backpack Sprayer Hose Handle and Wand Assembly